There is a long list of 118 institutional holders of TARS within the last two holding periods in our database of 13F filers, so we've sorted through to present to you just the top 50 institutional holders of TARS by largest to smallest position reported in the institutional investor's latest 13F filing. In the institutional-holders-of-TARS table below, the initial column indicates the name of each top institutional holder of TARS, with a link to that fund's top holdings. The next columns indicate the amount of TARS stock held by each of the institutional holders of TARS, followed by the TARS position size held by the institution, and finally the date of the quarterly 13F filing period the holdings data represents for that institution.

Holder	Amount	Position Size ($ in 1000's)	As of
RTW Investments LP	3,152,341	$63,835	12/31/2023
TARS	3,152,341	$63,835	12/31/2023
BlackRock Inc.	2,516,139	$50,952	12/31/2023
TARS	2,516,139	$50,952	12/31/2023
Cormorant Asset Management LP	2,221,422	$44,984	12/31/2023
TARS	2,221,422	$44,984	12/31/2023
Tang Capital Management LLC	2,204,797	$44,647	12/31/2023
TARS	2,204,797	$44,647	12/31/2023
Morgan Stanley	1,957,688	$39,643	12/31/2023
TARS	1,957,688	$39,643	12/31/2023
Cowen AND Company LLC	1,911,399	$38,706	12/31/2023
TARS	1,911,399	$38,706	12/31/2023
Frazier Life Sciences Management L.P.	1,787,527	$36,197	12/31/2023
TARS	1,787,527	$36,197	12/31/2023
Vivo Capital LLC	1,784,006	$36,126	12/31/2023
TARS	1,784,006	$36,126	12/31/2023
Vanguard Group Inc.	1,595,501	$32,309	12/31/2023
TARS	1,595,501	$32,309	12/31/2023
Perceptive Advisors LLC	1,296,416	$26,252	12/31/2023
TARS	1,296,416	$26,252	12/31/2023
TCG Crossover Management LLC	1,142,857	$23,143	12/31/2023
TARS	1,142,857	$23,143	12/31/2023
Paradigm Biocapital Advisors LP	1,025,000	$20,756	12/31/2023
TARS	1,025,000	$20,756	12/31/2023
Polygon Management Ltd.	800,000	$16,200	12/31/2023
TARS	800,000	$16,200	12/31/2023
State Street Corp	674,831	$13,665	12/31/2023
TARS	674,831	$13,665	12/31/2023
Ikarian Capital LLC		$12,525	12/31/2023
TARS	518,519	$10,500	12/31/2023
Call	100,000	$2,025	12/31/2023
Geode Capital Management LLC	609,736	$12,348	12/31/2023
TARS	609,736	$12,348	12/31/2023
Ensign Peak Advisors Inc	437,891	$8,867	12/31/2023
TARS	437,891	$8,867	12/31/2023
Dimensional Fund Advisors LP	430,127	$8,711	12/31/2023
TARS	430,127	$8,711	12/31/2023
Artisan Partners Limited Partnership	390,011	$7,898	12/31/2023
TARS	390,011	$7,898	12/31/2023
Jefferies Financial Group Inc.	380,758	$7,710	12/31/2023
TARS	380,758	$7,710	12/31/2023
Nantahala Capital Management LLC	375,276	$7,599	12/31/2023
TARS	375,276	$7,599	12/31/2023
Allspring Global Investments Holdings LLC	192,303	$6,990	03/31/2024
TARS	192,303	$6,990	03/31/2024
Ghost Tree Capital LLC	300,000	$6,075	12/31/2023
TARS	300,000	$6,075	12/31/2023
Sands Capital Ventures LLC	260,000	$5,265	12/31/2023
TARS	260,000	$5,265	12/31/2023
Northern Trust Corp	248,750	$5,037	12/31/2023
TARS	248,750	$5,037	12/31/2023
Bank of America Corp DE	238,823	$4,836	12/31/2023
TARS	238,823	$4,836	12/31/2023
Goldman Sachs Group Inc.	237,439	$4,808	12/31/2023
TARS	237,439	$4,808	12/31/2023
Nuveen Asset Management LLC	236,442	$4,788	12/31/2023
TARS	236,442	$4,788	12/31/2023
ExodusPoint Capital Management LP	232,900	$4,716	12/31/2023
TARS	232,900	$4,716	12/31/2023
Charles Schwab Investment Management Inc.	218,662	$4,428	12/31/2023
TARS	218,662	$4,428	12/31/2023
Millennium Management LLC	198,454	$4,019	12/31/2023
TARS	198,454	$4,019	12/31/2023
Schonfeld Strategic Advisors LLC	179,514	$3,635	12/31/2023
TARS	179,514	$3,635	12/31/2023
Norges Bank	160,100	$3,242	12/31/2023
TARS	160,100	$3,242	12/31/2023
Macquarie Group Ltd.	150,000	$3,038	12/31/2023
TARS	150,000	$3,038	12/31/2023
Boothbay Fund Management LLC		$2,749	12/31/2023
TARS	111,772	$2,263	12/31/2023
Call	24,000	$486	12/31/2023
Integral Health Asset Management LLC	100,000	$2,025	12/31/2023
TARS	100,000	$2,025	12/31/2023
Invesco Ltd.	97,873	$1,982	12/31/2023
TARS	97,873	$1,982	12/31/2023
Connor Clark & Lunn Investment Management Ltd.	90,083	$1,824	12/31/2023
TARS	90,083	$1,824	12/31/2023
Exome Asset Management LLC	84,400	$1,709	12/31/2023
TARS	84,400	$1,709	12/31/2023
Bank of New York Mellon Corp	82,197	$1,664	12/31/2023
TARS	82,197	$1,664	12/31/2023
Susquehanna International Group LLP		$1,553	12/31/2023
TARS	91,423	$1,851	12/31/2023
Put	14,700	$298	12/31/2023
Healthcare of Ontario Pension Plan Trust Fund	74,000	$1,498	12/31/2023
TARS	74,000	$1,498	12/31/2023
J. Goldman & Co LP	72,344	$1,465	12/31/2023
TARS	72,344	$1,465	12/31/2023
Standard Life Aberdeen plc	72,032	$1,459	12/31/2023
TARS	72,032	$1,459	12/31/2023
Two Sigma Investments LP	71,940	$1,457	12/31/2023
TARS	71,940	$1,457	12/31/2023
Two Sigma Advisers LP	66,300	$1,343	12/31/2023
TARS	66,300	$1,343	12/31/2023
SG Americas Securities LLC	54,979	$1,113	12/31/2023
TARS	54,979	$1,113	12/31/2023
Grant GrossMendelsohn LLC	53,610	$1,086	12/31/2023
TARS	53,610	$1,086	12/31/2023
Ameriprise Financial Inc.	53,450	$1,082	12/31/2023
TARS	53,450	$1,082	12/31/2023
Citadel Advisors LLC		$982	12/31/2023
TARS	43,037	$871	12/31/2023
Call	12,700	$257	12/31/2023
Put	7,200	$146	12/31/2023